EP0454710A1 - Procede de deposition par electrolyse de metaux sur une face ou sur les deux faces de bandes. - Google Patents

Procede de deposition par electrolyse de metaux sur une face ou sur les deux faces de bandes.

Info

Publication number
EP0454710A1
EP0454710A1 EP90901741A EP90901741A EP0454710A1 EP 0454710 A1 EP0454710 A1 EP 0454710A1 EP 90901741 A EP90901741 A EP 90901741A EP 90901741 A EP90901741 A EP 90901741A EP 0454710 A1 EP0454710 A1 EP 0454710A1
Authority
EP
European Patent Office
Prior art keywords
anode
sections
strip
anodes
strips
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90901741A
Other languages
German (de)
English (en)
Other versions
EP0454710B1 (fr
Inventor
Hans Josef May
Roland Schnettler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Andritz AG
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0454710A1 publication Critical patent/EP0454710A1/fr
Application granted granted Critical
Publication of EP0454710B1 publication Critical patent/EP0454710B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/06—Wires; Strips; Foils
    • C25D7/0614—Strips or foils

Definitions

  • the invention relates to a device for the electrolytic deposition of metals on one or both sides of the strips forming the catho, preferably steel strips, according to the preamble of claim 1, and to control methods for the one-sided coating of such strips in such a device.
  • the object of the invention is to improve a device of the gat device type and its control so that simple measures enable a one-sided coating without substantial metal precipitation on the side of the strip or anode not to be coated.
  • the corresponding anode is divided into a plurality of sections of the same size, it being possible for the anode sections to be accommodated with free sections or intermediate insulating pieces in a holder.
  • the anode is switched off in a known manner. Since the anode according to the invention is divided into several relatively small sections in the running direction of the strip to be coated, only small voltage potentials can be built up in these small sections compared to the total length of the anode, which deposition processes from the anode or Deposition processes from the electrolytes cannot be triggered or can only be triggered to a small extent.
  • anode according to the invention which is divided several times in the direction of strip travel enables several control options for one-sided coating operation, as specified in claims 4 and 5 and 6.
  • certain anodes such as iridium dioxide, for example, it may be sensible to apply anodically to the individual sections of the anode sections, which are in principle voltage-free, ie not "working", with a voltage lower than that required to trigger a deposition in order to passivate the anode and at the same time to avoid coating the side of the tape that is not to be coated.
  • An adapted anode application can be controlled in the individual anode sections.
  • anode according to the invention, if its surface is made of lead, for example, in the case of one-sided coating operation on the side not to be coated, precipitation at the end of the continuous strip section is reduced again by deposition in the reverse direction, in the area of the outlet the anode sections are struck electrically, ie negatively with respect to the opposite strip section, in such a way that the unwanted precipitation is degraded on the side of the strip that is not to be coated, without there being any decisive precipitation on the corresponding anode section.
  • Fig. 1 shows a longitudinal section through such a cell
  • Fig. 2 is a perpendicular to the section in Fig. 1 Ansic on an Ano multiple divided in the transverse direction in the cell.
  • Electrolyte bath 2 are in approximately parallel arrangement to each other, the two anodes 3 and 4, through the gap formed between them the strip 7 to be coated is passed.
  • This vertical arrangement runs from an upper deflection roller 5, possibly forming the str roll, to a lower roller 6 located in the electrolyte bath 2.
  • the non-soluble anode 3 can be seen as homogeneous over its length, the other non-soluble anode 4 is divided several times parallel to the direction of strip travel.
  • These anode sections which are preferably of equal size, bear the numbers 41, 42, 43 and 44. These sections are insulated from one another, for example by the spaces shown.
  • the anode sections are accommodated in a holder designated by the number 7.
  • the electrical insulation can, however, also be carried out by interposed insulating sections, for example plastic sections.
  • Each anode section can be electrically acted on by the separate connections 410, 420 430, 440.
  • Appropriate control processes preferably regulated and monitored, can be used to apply different voltages or potentials to these sections, which serve to carry out a one-sided coating of a strip via the anode 3.
  • control methods described essentially serve to prevent or reduce precipitation on the strip side that is not to be coated in the case of one-sided coating operation.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

Dans un dispositif de déposition par électrolyse de métaux sur l'un ou les deux côtés de bandes, de préférence de bandes d'acier, qui forment la cathode, la section (7) de la bande à revêtir est guidée à travers une fente située entre deux anodes (3, 4) parallèles nonsolubles dans l'électrolyte (6). Les anodes (3, 4) peuvent recevoir indépendamment l'une de l'autre une charge électrique. Une des deux anodes est subdivisée transversalement au sens de déplacement de la bande en plusieurs sections (41, 42, 43, 44) électriquement isolées les unes des autres qui peuvent chacune recevoir une charge électrique différente. Plusieurs procédés de commande de cette anode (4) permettent de revêtir un seul côté de bandes au moyen du dispositif décrit.
EP90901741A 1989-01-21 1990-01-20 Procede de deposition par electrolyse de metaux sur une face ou sur les deux faces de bandes Expired - Lifetime EP0454710B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3901807A DE3901807A1 (de) 1989-01-21 1989-01-21 Vorrichtung zum elektrolytischen abscheiden von metallen auf einer oder beiden seiten von baendern
DE3901807 1989-01-21
PCT/DE1990/000035 WO1990008209A1 (fr) 1989-01-21 1990-01-20 Dispositif de deposition par electrolyse de metaux sur une face ou sur les deux faces de bandes

Publications (2)

Publication Number Publication Date
EP0454710A1 true EP0454710A1 (fr) 1991-11-06
EP0454710B1 EP0454710B1 (fr) 1994-11-02

Family

ID=6372568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90901741A Expired - Lifetime EP0454710B1 (fr) 1989-01-21 1990-01-20 Procede de deposition par electrolyse de metaux sur une face ou sur les deux faces de bandes

Country Status (8)

Country Link
US (1) US5322614A (fr)
EP (1) EP0454710B1 (fr)
JP (1) JPH04504444A (fr)
AT (1) ATE113671T1 (fr)
AU (1) AU4843090A (fr)
DE (2) DE3901807A1 (fr)
ES (1) ES2063958T3 (fr)
WO (1) WO1990008209A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19510667A1 (de) * 1995-03-23 1996-09-26 Schloemann Siemag Ag Abscheidevorrichtung für Metalle aus einem metallhaltigen Elektrolyten
DE19717489B4 (de) * 1997-04-25 2008-04-10 Sms Demag Ag Anordnung zur elektrogalvanischen Metallbeschichtung eines Bandes
FR2765597B1 (fr) * 1997-07-02 1999-09-17 Kvaerner Metals Clecim Installation de revetement electrolytique de bandes metalliques, et anode pour une telle installation
JP3423631B2 (ja) * 1998-02-05 2003-07-07 キヤノン株式会社 酸化亜鉛薄膜の形成方法、それを用いた半導体素子基板の製造方法及び光起電力素子の製造方法
US6039858A (en) 1998-07-22 2000-03-21 International Business Machines Corporation Plating process for x-ray mask fabrication
SE529744C2 (sv) 2005-12-22 2007-11-13 Abb Technology Ag Anordning och metod för metallisk beläggning samt användning av anordningen
DE102009041068A1 (de) * 2009-09-10 2011-03-24 GM Global Technology Operations, Inc., Detroit Vorrichtung sowie Verfahren zur galvanischen Abscheidung einer Schicht auf einen Gegenstand

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3522166A (en) * 1967-04-21 1970-07-28 Reynolds Metals Co Electrical system for anodizing
US3970537A (en) * 1973-07-11 1976-07-20 Inland Steel Company Electrolytic treating apparatus
US3880725A (en) * 1974-04-10 1975-04-29 Rca Corp Predetermined thickness profiles through electroplating
US4240881A (en) * 1979-02-02 1980-12-23 Republic Steel Corporation Electroplating current control
DE3017079A1 (de) * 1980-05-03 1981-11-05 Thyssen AG vorm. August Thyssen-Hütte, 4100 Duisburg Vorrichtung zum elektroplattieren
JPS6056099A (ja) * 1983-09-05 1985-04-01 Fuji Photo Film Co Ltd 電解処理装置
DE3510592A1 (de) * 1985-03-23 1986-10-02 Hoesch Stahl AG, 4600 Dortmund Hochgeschwindigkeits-elektrolysezelle fuer die veredelung von bandfoermigem gut
JPS63259098A (ja) * 1987-04-15 1988-10-26 Sumitomo Metal Ind Ltd 連続電気メツキ設備のメツキ電流制御方法
JPS6417890A (en) * 1987-07-13 1989-01-20 Kawasaki Steel Co Method for controlling electroplating amount

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9008209A1 *

Also Published As

Publication number Publication date
DE3901807A1 (de) 1990-07-26
ES2063958T3 (es) 1995-01-16
DE59007643D1 (de) 1994-12-08
JPH04504444A (ja) 1992-08-06
DE3901807C2 (fr) 1993-08-26
US5322614A (en) 1994-06-21
AU4843090A (en) 1990-08-13
ATE113671T1 (de) 1994-11-15
EP0454710B1 (fr) 1994-11-02
WO1990008209A1 (fr) 1990-07-26

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